The only fish I know that would eat that stuff is a siamese algae-eater...and the only way I got rid of it in the past was injecting CO2 or taking out the driftwood and using H2O2 and dosing with excel while cutting way back on light intensity/duration. It's harmless to fish...its too much work to neutralize lol.The longer fluffy stuff is call Brown beard algea. Most people fight it, I just let it do it's thing.
